What Does the Term a-si TFT/PVA Mean?

The term, a-si TFT/PVA, describes what the liquid crystal cells (pixels) in an LCD screen are made of and how the liquid crystal cells in the screen are controlled and configured.

Description of Each Term

a-si - amorphous silicon. The kind of silicon used in the LCD screen.

TFT - Thin Field Transistors. The kind of transistors used to control the liquid crystal cells in the LCD screen.

PVA - Patterned Vertical Alignment. The orientation of the liquid crystal particles in the LCD screen.

Here is another term you might see:

TN - Twisted Nematic. A kind of liquid crystal used in LCD monitors that is naturally twisted. TNs have two interesting properties:

When you apply an electric current to a TN, it untwists, with the amount of untwisting dependent upon the voltage of the current.

The amount of light that can pass through a TN depends upon how twisted it is.

Because you can cause a TN to untwist by applying an electric current to it and control the amount it untwists by varying the voltage of the current, you can control the amount of light that passes through a TN by changing the voltage of a current you apply to the TN.

About Us

To be eligible for this offer, you must purchase a qualifying new Samsung product (or products) from a participating Samsung retailer. Offer valid on eligible products purchased between 11/1/14 and 3/31/15 during the promotion dates and requests must be postmarked by 6/29/15. Promotion closes on 3/31/15. Purchases from online auctions are not eligible. Samsung designs promotions for specific products and does not allow product substitutions, deletions or additions regardless of information you learn from other sources. Limit one Rebate per receipt, customer, person, family, household or address. This offer cannot be combined with any other Samsung offer unless specifically stated in writing. This offer is not available to distributors, dealers, resellers, retailers or retailers of these products. This offer is available to all customers with mailing addresses in the US and Puerto Rico. Purchases made in other countries or for delivery to other countries are not eligible. Samsung is not responsible for lost, late, damaged, illegible, inaccurate, misdirected or postage-due submissions, requests or checks. Your rights cannot be assigned or transferred, and this offer is void where taxed, restricted or prohibited by law. Excessive submissions constitute fraud and may result in federal prosecution under the US Mail Fraud Statutes (Title 18, USC 1341 and 1342). Keep copies of all materials submitted: originals become property of Samsung and will not be returned. For those who qualify, Rebate will be mailed in 8-10 weeks from date of submission. Failure to comply with the rules of this promotion will make your submission invalid and could delay or prevent the mailing of your Rebate. Eligible models include RF34H9960S4, RF34H9950S4, NE58H9950WS, NE58H9970WS, NX58H9950WS, DW80H9970US. Samsung reserves the right to cancel this offer at any time or change the terms and conditions without notice.